3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class Test implements \JsonSerializable { protected $a; protected $b; public $c; public function __construct() { $this->a = 1; $this->b = 2; $this->c = 3; } public function jsonSerialize() { return [$this->a, $this->b]; } } $t = new Test(); echo json_encode($t->jsonSerialize()); echo json_encode($t);
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
[1,2][1,2]
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/SoLW6 on line 15
Process exited with code 255.
Output for 5.1.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/SoLW6 on line 3 Parse error: syntax error, unexpected '[' in /in/SoLW6 on line 15
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/SoLW6 on line 3 Parse error: parse error, unexpected '[' in /in/SoLW6 on line 15
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/SoLW6 on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting '{' in /in/SoLW6 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/SoLW6 on line 3
Process exited with code 255.